tang vs spiciness

tang and spiciness both are nouns.

Word	Noun	Adjective	Verb	Adverb
tang	Yes	No	No	No
spiciness	Yes	No	No	No

As nouns, spiciness is a hypernym of tang; that is, spiciness is a word with a broader meaning than tang:

Other hypernyms of tang include spice, spicery.

tang (noun)	spiciness (noun)
any of various kelps especially of the genus Laminaria	the property of being seasoned with spice and so highly flavored
any of various coarse seaweeds	behavior or language bordering on indelicacy
brown algae seaweed with serrated edges
a common rockweed used in preparing kelp and as manure
a tart spicy quality
the taste experience when a savoury condiment is taken into the mouth